commit f6f691b63c1b2166ed005a462a6fba5001786eda
author Christopher Ferris <cferris@google.com> Mon Sep 25 19:23:07 2017 -0700
committer Christopher Ferris <cferris@google.com> Wed Oct 04 14:40:14 2017 -0700
tree 0b8cb36809d1d497a6fa9388620dda1768ca5c50
parent dea5e081ac0f94a83650a600af881b529817b6fd

Update the Unwinder object and add tests.

Changes:
- Remove unused GetReturnAddressFromDefault function and tests.
- Modify the unwinder to stop when a pc/sp in a device map.
- Modify the unwinder to skip initial frames based on map names.
- Unit tests that exercise all of the paths in the unwinder code.
- Move the test Elf/ElfInterface objects into their own file.
- Update RegsFake to handle extra cases.
- Modify libbacktrace code to use this unwinder.

The new unwinder does not implement the ignore frame functionality since
this is not used very often and is better implemented using a skip frames
in named libraries functionality.

Test: Ran new unit tests, ran backtrace tests.
Change-Id: Ifd65e9acd66ac5e2d0e04bd32a9ad870b54610ff

libunwindstack/Android.bp

diff --git a/libunwindstack/Android.bp b/libunwindstack/Android.bp
index ca05516..97832df 100644
--- a/libunwindstack/Android.bp
+++ b/libunwindstack/Android.bp
@@ -107,6 +107,7 @@
         "tests/DwarfOpTest.cpp",
         "tests/DwarfSectionTest.cpp",
         "tests/DwarfSectionImplTest.cpp",
+        "tests/ElfFake.cpp",
         "tests/ElfInterfaceArmTest.cpp",
         "tests/ElfInterfaceTest.cpp",
         "tests/ElfTest.cpp",
@@ -125,6 +126,7 @@
         "tests/RegsTest.cpp",
         "tests/SymbolsTest.cpp",
         "tests/UnwindTest.cpp",
+        "tests/UnwinderTest.cpp",
     ],
 
     cflags: [